2013 535i F10 MHD Stage 2+ Datalogs - Take a look plz

willmayo20

New Member
May 10, 2021
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Trying to chase down a stutter/misfire issue - 3rd/4th pull attached. Anyone see anything concerning? I seem to be getting a lot of timing corrections on cylinder 4, and a bit less so on cylinder 2. Just replaced coils 5,6, and 1. All new plugs, new injector on cyl 6. I have another new coil that I haven't decided where to put yet, and will be ordering another 2 this week so as to have all 6 as new.
 

willmayo20

New Member
May 10, 2021
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the stutter you feel is likely throttle closures
Well it usually coincides with the timing corrections. And the misfire counter in bimmerlink was showing misfires on cyl 1 - hence the replacement of that coil. I'm consistently getting 5*+ corrections on cyl 4.... cyl 2 also but more mild... 3* or less.
 

willmayo20

New Member
May 10, 2021
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Any thoughts? Good example of the issue is if I'm on the highway and want to pass without the trans downshifting - it struggles. If it kicks down a gear it's fine. But it's like low rpm, high load situations where it stutters.